Pressure Relief Valve Technical Specifications; General Data - Emerson Tescom WegaMed Instrucciones De Uso

8.1.2.2 Continually adjustable flow outlet
Flow setting range: ........... 0.027 – 32 l/min *)
(depending on the gauge head)
Accuracy of appliances at max. flow ≤ 2 l/min: ±2.5% of the end scale value
Accuracy of appliances at max. flow > 2 l/min: ±10% of the displayed value
8.1.3 Pressure regulator for test gas mixture
Version Inlet pressure range
2.1 bar 0.52 to max. 20 MPa
3 bar 0.7 to max. 20 MPa
4 bar 0.9 to max. 20 MPa
5 bar 1.1 to max. 20 MPa
7 bar 1.5 to max. 20 MPa
*) at minimum inlet pressure (0.52 / 1.1 / 1.5 MPa) and nominal flow
Due to the design of the appliance, the outlet pressure increases linearly as the inlet
pressure decreases (approx. 150 kPa (1.5 bar) at 200 MPa to 1.1 MPa (20 bar to 11 bar)).
The actual outlet pressure is determined by the flow rate and the instantaneous inlet
pressure (see Section "Flow curves").
The flow rate is also dependent upon the composition of the gas mixture. For
gas mixtures with an air component lower than 90% or without air component,
contact the test gas manufacturer for the conversion factor to air.
Any downstream flow control unit must be suitable for the test gas mixture used.
8.2

Pressure relief valve technical specifications

The nominal secondary pressure P2 is specified on the equipment type plate.

8.2.1 General data

Version nominal
secondary pressure P2
450 kPa (4,5 bar)
460 kPa (4,6 bar)
Nominal outlet pressure *) Nominal flow (air)
210 ± 10 kPa (2.1±1 bar)
350 ± 30 kPa (3.5±0.3 bar) 50 l/min
450 ± 25 kPa (4.5±0.25
bar)
500 ± 10 kPa (5.4 ± 0.1
bar)
700 ± 25 kPa (7 ± 0.25
bar)
Start of discharge (opening
pressure)
600+150 kPa (6,0+1,5 bar)
850 +50 kPa (8,5+0,5 bar)
73
30 l/min
40 l/min
55 l/min
100 l/min
Minimum discharge
capacity for gas types air
190 l/min
220 l/min
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